Fabric



C. A. COUPS Oct. 29, 1929.

FABRIC Filed Dec. 21, 1927 v flvventoz 351 6mm 1 I Patented Oct. 29, 1929 I UNITED STATES PATENT OFFICE CHARLES A. COUPS, OF BELLEVILLE, NEW JERSEY, ASSIGNOR 'IO EASTWOOD WIRE MANUFACTURING COMPANY, 01! IBELLEVILLE, NEW JERSEY, A CORPORATION OI NEW JERSEY FABRIC.

Application filed December 21, 1927. Serial No. 241,481.

This invention relates to fabric and more especially to wire cloth for use in paper making machinery to carry the films of stock or pulp. The wire cloth previously used has 5 sometimes been of twill Weave. In the standard twill weave the points of passing over of the warp wires with respect to the weft wires form ridges extending obliquely of the fabric. The paper pulp when carried on bands formed. of this type of cloth has had a tendency to work out to the edges of the band along the channels between the ridges, thus making un-uniform the distribution of the pulp on the band.

An object of this invention is a modified twill weave in which the ridges formed by the bends of the warp wires in passing over the-weft wires extend in a zig-zag line laterally of the fabric and thus counteract the above noted tendency of the pulp to work out to the edges of aband made of such fabric.

7 Other objects, novel features and advantages of this invention will be apparent from the following pecification and accompanying drawings, wherein:

Figure 1 is a plan view of a strip of cloth embodying the invention, and

Figures 2, 3 and 4 are sections on the lines 2-2, 3-3 and 1-4 respectively of Fig. 1.

with the weft threads or wires, a, b, c, d, e, f, g and h in such a way that each warp thread or wire passes over one and under two ofithe weft threads or wires and so on throughout the fabric. One out of three consecutive' weft wires or threads pass under one and over two of the war threads or wires and so on through the width of the fabric. The other two weft wires or threads pass under one, over one, under one, and over three, warp threads, this sequence bein 'repeated .throughout the width of the fabrlc.

This arrangement of the warp and weft wires'causes the,.bends in the warp wires formed in passing over the weft wires to de-' fine zigizag ridges. These ridges are illustrated y means of an X placed on the drawings at each lace where the warp overlies the weft. Li ewise between the ridges thus formed are defined zig-za g channels extending laterally of the fabric. Thus when a wire cloth woven after this fashion is used as a conveyor band for paper pulp there is no tendency for the pulp to work toward the edges of the band and as a result the paper pulp is maintained at uniform distribution over the conveyor.

Moreover it is apparent that wire cloth embodying this weave may be used for purposes other than the conveyor for paper pulp in paper making machinery. This type of weave may be used in the production of any type of cloth and it is intended that the scope of the inventidn shall be limited only by the appended claims.

I claim: I

1. A wire cloth for use in paper making machinery comprising warp and weft wires of which each warp wire passes over one and under two weft wires with the ridges formed by the upwardly directed bends in the warp wires extendin laterally of the cloth in zig-zag lines and orming transverse channels. Y

2. A wire cloth for use in paper making machinery comprising warp and weft wires of which each warp wire passes over one and under two weft wires, the points of cross The fabric is constructed with the warp threads or wires 1, 2, 3, 4, 5,6, 7 and 8 wovenover of the warp wires defining zig-zag lines extending laterally of the fabric and forming transverse channels.

3. A wire cloth for use in paper making machinery, comprising warp and weft wires of which eachwarp wire passes over one and under two weft wires, one out of each three successive weft wires passes-under one and over two warp wires and the remaining weft wires pass under one, over one, under one and over three warp wires, the points of crossover of the warp wires defining lateral zig-zag lines forming. channels extending transversely of the cloth; I In testimony whereof, I have signed my name to this specification. I

CHARLES A. COUPS. 

